package com.ruoyi.system.service.impl;

import java.util.*;
import java.util.stream.Collectors;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.domain.entity.SysDept;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.system.domain.*;
import com.ruoyi.system.domain.vo.UserTreeVo;
import com.ruoyi.system.mapper.*;
import jakarta.validation.Validator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import com.ruoyi.common.annotation.DataScope;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.entity.SysRole;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.bean.BeanValidators;
import com.ruoyi.common.utils.spring.SpringUtils;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysDeptService;
import com.ruoyi.system.service.ISysUserService;

/**
 * 用户 业务层处理
 *
 * @author ruoyi
 */
@Service
public class SysUserServiceImpl implements ISysUserService {
    private static final Logger log = LoggerFactory.getLogger(SysUserServiceImpl.class);

    @Autowired
    private SysUserMapper userMapper;

    @Autowired
    private SysRoleMapper roleMapper;

    @Autowired
    private SysPostMapper postMapper;

    @Autowired
    private SysUserRoleMapper userRoleMapper;

    @Autowired
    private SysUserPostMapper userPostMapper;

    @Autowired
    private ISysConfigService configService;

    @Autowired
    private ISysDeptService deptService;

    @Autowired
    protected Validator validator;

    @Autowired
    private SysDeptMapper sysDeptMapper;

    @Autowired
    private SysPostMapper sysPostMapper;


    // 注入用户-岗位关联Mapper（若依自带）
    @Autowired
    private SysUserPostMapper sysUserPostMapper;

    /**
     * 根据条件分页查询用户列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUser> selectUserList(SysUser user) {
        return userMapper.selectUserList(user);
    }

    /**
     * 根据条件分页查询已分配用户角色列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUser> selectAllocatedList(SysUser user) {
        return userMapper.selectAllocatedList(user);
    }

    /**
     * 根据条件分页查询未分配用户角色列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUser> selectUnallocatedList(SysUser user) {
        return userMapper.selectUnallocatedList(user);
    }

    /**
     * 通过用户名查询用户
     *
     * @param userName 用户名
     * @return 用户对象信息
     */
    @Override
    public SysUser selectUserByUserName(String userName) {
        return userMapper.selectUserByUserName(userName);
    }

    /**
     * 通过用户ID查询用户
     *
     * @param userId 用户ID
     * @return 用户对象信息
     */
    @Override
    public SysUser selectUserById(Long userId) {
        return userMapper.selectUserById(userId);
    }

    /**
     * 查询用户所属角色组
     *
     * @param userName 用户名
     * @return 结果
     */
    @Override
    public String selectUserRoleGroup(String userName) {
        List<SysRole> list = roleMapper.selectRolesByUserName(userName);
        if (CollectionUtils.isEmpty(list)) {
            return StringUtils.EMPTY;
        }
        return list.stream().map(SysRole::getRoleName).collect(Collectors.joining(","));
    }

    /**
     * 查询用户所属岗位组
     *
     * @param userName 用户名
     * @return 结果
     */
    @Override
    public String selectUserPostGroup(String userName) {
        List<SysPost> list = postMapper.selectPostsByUserName(userName);
        if (CollectionUtils.isEmpty(list)) {
            return StringUtils.EMPTY;
        }
        return list.stream().map(SysPost::getPostName).collect(Collectors.joining(","));
    }

    /**
     * 校验用户名称是否唯一
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public boolean checkUserNameUnique(SysUser user) {
        Long userId = StringUtils.isNull(user.getUserId()) ? -1L : user.getUserId();
        SysUser info = userMapper.checkUserNameUnique(user.getUserName());
        if (StringUtils.isNotNull(info) && info.getUserId().longValue() != userId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验手机号码是否唯一
     *
     * @param user 用户信息
     * @return
     */
    @Override
    public boolean checkPhoneUnique(SysUser user) {
        Long userId = StringUtils.isNull(user.getUserId()) ? -1L : user.getUserId();
        SysUser info = userMapper.checkPhoneUnique(user.getPhonenumber());
        if (StringUtils.isNotNull(info) && info.getUserId().longValue() != userId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验email是否唯一
     *
     * @param user 用户信息
     * @return
     */
    @Override
    public boolean checkEmailUnique(SysUser user) {
        Long userId = StringUtils.isNull(user.getUserId()) ? -1L : user.getUserId();
        SysUser info = userMapper.checkEmailUnique(user.getEmail());
        if (StringUtils.isNotNull(info) && info.getUserId().longValue() != userId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验用户是否允许操作
     *
     * @param user 用户信息
     */
    @Override
    public void checkUserAllowed(SysUser user) {
        if (StringUtils.isNotNull(user.getUserId()) && user.isAdmin()) {
            throw new ServiceException("不允许操作超级管理员用户");
        }
    }

    /**
     * 校验用户是否有数据权限
     *
     * @param userId 用户id
     */
    @Override
    public void checkUserDataScope(Long userId) {
        if (!SysUser.isAdmin(SecurityUtils.getUserId())) {
            SysUser user = new SysUser();
            user.setUserId(userId);
            List<SysUser> users = SpringUtils.getAopProxy(this).selectUserList(user);
            if (StringUtils.isEmpty(users)) {
                throw new ServiceException("没有权限访问用户数据！");
            }
        }
    }

    /**
     * 新增保存用户信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional
    public int insertUser(SysUser user) {
        // 新增用户信息
        int rows = userMapper.insertUser(user);
        // 新增用户岗位关联
        insertUserPost(user);
        // 新增用户与角色管理
        insertUserRole(user);
        return rows;
    }

    /**
     * 注册用户信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public boolean registerUser(SysUser user) {
        return userMapper.insertUser(user) > 0;
    }

    /**
     * 修改保存用户信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    @Transactional
    public int updateUser(SysUser user) {
        Long userId = user.getUserId();
        // 删除用户与角色关联
        userRoleMapper.deleteUserRoleByUserId(userId);
        // 新增用户与角色管理
        insertUserRole(user);
        // 删除用户与岗位关联
        userPostMapper.deleteUserPostByUserId(userId);
        // 新增用户与岗位管理
        insertUserPost(user);
        return userMapper.updateUser(user);
    }

    /**
     * 用户授权角色
     *
     * @param userId  用户ID
     * @param roleIds 角色组
     */
    @Override
    @Transactional
    public void insertUserAuth(Long userId, Long[] roleIds) {
        userRoleMapper.deleteUserRoleByUserId(userId);
        insertUserRole(userId, roleIds);
    }

    /**
     * 修改用户状态
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public int updateUserStatus(SysUser user) {
        return userMapper.updateUser(user);
    }

    /**
     * 修改用户基本信息
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public int updateUserProfile(SysUser user) {
        return userMapper.updateUser(user);
    }

    /**
     * 修改用户头像
     *
     * @param userId 用户ID
     * @param avatar 头像地址
     * @return 结果
     */
    @Override
    public boolean updateUserAvatar(Long userId, String avatar) {
        return userMapper.updateUserAvatar(userId, avatar) > 0;
    }

    /**
     * 重置用户密码
     *
     * @param user 用户信息
     * @return 结果
     */
    @Override
    public int resetPwd(SysUser user) {
        return userMapper.updateUser(user);
    }

    /**
     * 重置用户密码
     *
     * @param userId   用户ID
     * @param password 密码
     * @return 结果
     */
    @Override
    public int resetUserPwd(Long userId, String password) {
        return userMapper.resetUserPwd(userId, password);
    }

    @Override
    public int resetFirstUserPwd(Long userId, String password) {
        return userMapper.resetFirstUserPwd(userId, password);
    }

    /**
     * 新增用户角色信息
     *
     * @param user 用户对象
     */
    public void insertUserRole(SysUser user) {
        this.insertUserRole(user.getUserId(), user.getRoleIds());
    }

    /**
     * 新增用户岗位信息
     *
     * @param user 用户对象
     */
    public void insertUserPost(SysUser user) {
        Long[] posts = user.getPostIds();
        if (StringUtils.isNotEmpty(posts)) {
            // 新增用户与岗位管理
            List<SysUserPost> list = new ArrayList<SysUserPost>(posts.length);
            for (Long postId : posts) {
                SysUserPost up = new SysUserPost();
                up.setUserId(user.getUserId());
                up.setPostId(postId);
                list.add(up);
            }
            userPostMapper.batchUserPost(list);
        }
    }

    /**
     * 新增用户角色信息
     *
     * @param userId  用户ID
     * @param roleIds 角色组
     */
    public void insertUserRole(Long userId, Long[] roleIds) {
        if (StringUtils.isNotEmpty(roleIds)) {
            // 新增用户与角色管理
            List<SysUserRole> list = new ArrayList<SysUserRole>(roleIds.length);
            for (Long roleId : roleIds) {
                SysUserRole ur = new SysUserRole();
                ur.setUserId(userId);
                ur.setRoleId(roleId);
                list.add(ur);
            }
            userRoleMapper.batchUserRole(list);
        }
    }

    /**
     * 通过用户ID删除用户
     *
     * @param userId 用户ID
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteUserById(Long userId) {
        // 删除用户与角色关联
        userRoleMapper.deleteUserRoleByUserId(userId);
        // 删除用户与岗位表
        userPostMapper.deleteUserPostByUserId(userId);
        return userMapper.deleteUserById(userId);
    }

    /**
     * 批量删除用户信息
     *
     * @param userIds 需要删除的用户ID
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteUserByIds(Long[] userIds) {
        for (Long userId : userIds) {
            checkUserAllowed(new SysUser(userId));
            checkUserDataScope(userId);
        }
        // 删除用户与角色关联
        userRoleMapper.deleteUserRole(userIds);
        // 删除用户与岗位关联
        userPostMapper.deleteUserPost(userIds);
        return userMapper.deleteUserByIds(userIds);
    }

    /**
     * 导入用户数据
     *
     * @param userList        用户数据列表
     * @param isUpdateSupport 是否更新支持，如果已存在，则进行更新数据
     * @param operName        操作用户
     * @return 结果
     */
    @Override
    public String importUser(List<SysUser> userList, Boolean isUpdateSupport, String operName) {
        if (StringUtils.isNull(userList) || userList.size() == 0) {
            throw new ServiceException("导入用户数据不能为空！");
        }
        int successNum = 0;
        int failureNum = 0;
        StringBuilder successMsg = new StringBuilder();
        StringBuilder failureMsg = new StringBuilder();
        for (SysUser user : userList) {
            try {
                // 验证是否存在这个用户
                SysUser u = userMapper.selectUserByUserName(user.getUserName());
                if (StringUtils.isNull(u)) {
                    BeanValidators.validateWithException(validator, user);
                    deptService.checkDeptDataScope(user.getDeptId());
                    String password = configService.selectConfigByKey("sys.user.initPassword");
                    user.setPassword(SecurityUtils.encryptPassword(password));
                    user.setCreateBy(operName);
                    userMapper.insertUser(user);
                    successNum++;
                    successMsg.append("<br/>" + successNum + "、账号 " + user.getUserName() + " 导入成功");
                } else if (isUpdateSupport) {
                    BeanValidators.validateWithException(validator, user);
                    checkUserAllowed(u);
                    checkUserDataScope(u.getUserId());
                    deptService.checkDeptDataScope(user.getDeptId());
                    user.setUserId(u.getUserId());
                    user.setUpdateBy(operName);
                    userMapper.updateUser(user);
                    successNum++;
                    successMsg.append("<br/>" + successNum + "、账号 " + user.getUserName() + " 更新成功");
                } else {
                    failureNum++;
                    failureMsg.append("<br/>" + failureNum + "、账号 " + user.getUserName() + " 已存在");
                }
            } catch (Exception e) {
                failureNum++;
                String msg = "<br/>" + failureNum + "、账号 " + user.getUserName() + " 导入失败：";
                failureMsg.append(msg + e.getMessage());
                log.error(msg, e);
            }
        }
        if (failureNum > 0) {
            failureMsg.insert(0, "很抱歉，导入失败！共 " + failureNum + " 条数据格式不正确，错误如下：");
            throw new ServiceException(failureMsg.toString());
        } else {
            successMsg.insert(0, "恭喜您，数据已全部导入成功！共 " + successNum + " 条，数据如下：");
        }
        return successMsg.toString();
    }

    @Override
    public AjaxResult userTree(Long postId) {
        List<UserTreeVo> resultList = new ArrayList<>();

        // 1. 按岗位ID获取关联的用户ID集合（final修饰，支持lambda使用）
        final Set<Long> userIdsByPost = new HashSet<>();
        if (postId != null) {
            Set<Long> tempUserIds = sysUserPostMapper.selectUserIdsByPostId(postId);
            userIdsByPost.addAll(tempUserIds);
            // 若岗位无关联用户，直接返回空结果
            if (userIdsByPost.isEmpty()) {
                return AjaxResult.success(resultList);
            }
        }

        // 2. 部门用户：按岗位过滤（原有逻辑，保持不变）
        List<SysUser> sysUsers = selectUserList(null);
        if (postId != null) {
            sysUsers = sysUsers.stream()
                    .filter(user -> userIdsByPost.contains(user.getUserId()))
                    .collect(Collectors.toList());
        }

        // 3. 按部门分组并构建部门树形节点（原有逻辑，保持不变）
        Map<Long, List<SysUser>> deptUserList = sysUsers.stream()
                .filter(user -> user.getDeptId() != null)
                .collect(Collectors.groupingBy(SysUser::getDeptId));

        List<SysDept> sysDepts = sysDeptMapper.selectDeptList(null);
        List<String> sortDeptList = sysDepts.stream().map(SysDept::getDeptName).collect(Collectors.toList());
        Map<Long, String> deptMap = sysDepts.stream()
                .collect(Collectors.toMap(SysDept::getDeptId, SysDept::getDeptName));

        deptUserList.entrySet().forEach(d -> {
            UserTreeVo deptTreeVo = new UserTreeVo();
            deptTreeVo.setUserId(null);
            // 修复：d.getKey()本身是Long，无需Long.valueOf转换
            deptTreeVo.setName(deptMap.get(d.getKey()));
            deptTreeVo.setDeptCheckGroup(new ArrayList<>());

            List<UserTreeVo> childrenList = d.getValue().stream()
                    .map(childUserDo -> {
                        UserTreeVo childUserVo = new UserTreeVo();
                        childUserVo.setName(childUserDo.getNickName());
                        childUserVo.setUserId(childUserDo.getUserId());
                        return childUserVo;
                    })
                    .collect(Collectors.toList());

            deptTreeVo.setChildList(childrenList);
            resultList.add(deptTreeVo);
        });

        // 4. 安全督察员分组：新增岗位过滤（核心修复点）
        UserTreeVo otherUserTreeVo = new UserTreeVo();
        otherUserTreeVo.setUserId(null);
        otherUserTreeVo.setName("安全督察员");
        otherUserTreeVo.setDeptCheckGroup(new ArrayList<>());

        List<SysUser> safeUserList = userMapper.selectSafeUserList();
        // 关键修复：若传了postId，过滤出“岗位关联用户”中的安全督察员
        if (postId != null && CollUtil.isNotEmpty(safeUserList)) {
            safeUserList = safeUserList.stream()
                    .filter(user -> userIdsByPost.contains(user.getUserId())) // 按岗位过滤安全督察员
                    .collect(Collectors.toList());
        }

        // 只有过滤后仍有用户，才添加“安全督察员”分组
        if (CollUtil.isNotEmpty(safeUserList)) {
            List<UserTreeVo> childrenList = safeUserList.stream()
                    .map(childUserDo -> {
                        UserTreeVo childUserVo = new UserTreeVo();
                        childUserVo.setName(childUserDo.getNickName());
                        childUserVo.setUserId(childUserDo.getUserId());
                        return childUserVo;
                    })
                    .collect(Collectors.toList());
            otherUserTreeVo.setChildList(childrenList);
            resultList.add(otherUserTreeVo);
        }

        // 5. 节点排序（原有逻辑，保持不变）
        resultList.sort((vo1, vo2) -> {
            int index1 = sortDeptList.indexOf(vo1.getName());
            int index2 = sortDeptList.indexOf(vo2.getName());

            index1 = index1 == -1 ? Integer.MAX_VALUE : index1;
            index2 = index2 == -1 ? Integer.MAX_VALUE : index2;

            return Integer.compare(index1, index2);
        });

        return AjaxResult.success(resultList);
    }

    @Override
    public AjaxResult appUserInfo() {

        Map<String, Object> result = new HashMap<>();

        LoginUser loginUser = SecurityUtils.getLoginUser();

        SysUser user = loginUser.getUser();
        result.put("nickName", user.getUserName());
        result.put("phone", user.getPhonenumber());

        Long deptId = loginUser.getUser().getDeptId();

        if (deptId != null) {
            SysDept sysDept = deptService.selectDeptById(deptId);
            if (sysDept != null) {
                result.put("deptName", sysDept.getDeptName());
            }
        }

        return AjaxResult.success(result);
    }

    @Override
    public AjaxResult listUserByDept(IdDto dto) {


        List<Map<String, Object>> result = new ArrayList<>();


        SysUser sysUser = new SysUser();
        sysUser.setDeptId(dto.getId());
        List<SysUser> sysUsers = userMapper.selectUserList(sysUser);

        for (SysUser user : sysUsers) {

            Map<String, Object> obj = new HashMap<>();

            obj.put("text", user.getNickName());
            obj.put("value", user.getUserId());

            result.add(obj);
        }

        return AjaxResult.success(result);

    }


    @Override
    public AjaxResult userByDept(IdsDto dto) {
        List<Map<String, Object>> result = new ArrayList<>();

        if (CollUtil.isEmpty(dto.getIdList())) {
            return AjaxResult.error("请选择部门");
        }

        List<SysUser> sysUsers = userMapper.selectByDeptList(dto.getIdList());
        for (SysUser user : sysUsers) {

            Map<String, Object> obj = new HashMap<>();

            SysDept sysDept = deptService.selectDeptById(user.getDeptId());


            obj.put("text", user.getNickName() + "-" + sysDept.getDeptName());
            obj.put("value", user.getUserId());

            result.add(obj);
        }
        return AjaxResult.success(result);
    }

    @Override
    public AjaxResult updateUserCid(SysUser sysUser) {

        SysUser user = userMapper.selectUserByUserName(sysUser.getUserName());


        SysUser updateSysUser = new SysUser();
        updateSysUser.setUserId(user.getUserId());
        if (StrUtil.isNotBlank(sysUser.getCid())) {
            updateSysUser.setCid(sysUser.getCid());
        }

        userMapper.updateUser(updateSysUser);

        return AjaxResult.success();
    }
}
